A 50-million-year-old fossil captures a swimming school of fish: https://www.sciencenews.org/article/50-million-year-old-fossil-captures-swimming-school-fish #Biology
A 50-million-year-old fossil captures a swimming school of fish: https://www.sciencenews.org/article/50-million-year-old-fossil-captures-swimming-school-fish #Biology